Boiler-setting



L. NEVERS AND F. WHHBECK.

L. NEVERS AND F. WHITBECK.

BOILER SETTING. APPLICATION FILED APR- 5'1917.

Patented Jan.13,1920.

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LESTER NEVERS AND FRANK WHITBECK, OF GRAND RAPIDS, MICHIGAN.

norma-SETTING.

Specification of Letters Patent.

Patented Jan. 13, 1920.

Application led April 5, 1917. Serial No. 160,062.

` ing an object and purpose of our invention to produce a device of this character and provide it with various novel constructions by means of which a thorough and complete combustion of fuel in the fire box underneath the boiler may be obtained, there being substantially no smoke given off irrespective of the type or grade of fuel used. Our invention consists essentially in the installation of means through which, when fresh fuel is `thrown on one side of the fire, the gases and smoke which. immediately arise therefrom are constrained to 4pass across the opposite side'of the fire which,`being fully ignited, causes the combustion of gases and smoke so that a complete combustion of the fuel is attained. In addition our invention has for its object the heating of air before it comes to the fire whereby a more perfect combustilpn and greater heat is obtained from the Our invention by which these ends and many others are attained is illustrated in the accompanying drawings in which;

Figure 1 is a vertical section taken through a boiler having our new and improved sety drawings.

ting.

Fig. 2 is a section taken substantially on *the line 2 2 of Fig. 1.

l Fig. 3 is a front elevation. v

Fig. 4 vis a partial vertical section and front elevation of the boiler and setting therefor and,

Fig. 5 is a section reduced in size and taken substantially on line 5- -5 of Fig. 1.

Like lreference characters refer to like parts throughout the several views of the The boilerl 1, shown 'was' of tube type,

j is Supported-@Ute nds;by,-fr0nt and .rear "wa'11sj2 and 3 'while .ateach sidejof the 'boiler connected with the boiler as shown, it of course being understood that the particular type of boiler is not in any way an essential feature of our invention.

The fuel is received on the grate 6, being entered alternately into the fire box above thegrate through the two front doors 7 and l8. Theash pit 9 is locatedbelow the grate, entrance thereto at the front being through a door 9a. The fire box has an arched cover 10 below which at the rear is a post 1l preferably of the cross section shown in Fig. 5. The ash pit rear wall 12 is located across the front end of an air yconduit 13 which is inclosed by sides 14 and 15 and a cover 16,

this conduit at its rear end turning at right angles, as indicated at 13a, being there inclosed by a side 17 and rear wall 3 with cover 16 extended .thereoven The end of the branch 13 is in communication with the outer air as indicated in Fig. 2. At its front end the air conduit 13 has oppositely extend- .ing branches 18 and 19 which are located back of the rear of the wall 12 and are then turned forwardly as shown at 20 ,and 21 said conduits 20' and 21 being. inclosed by' the sides 22 of the fire box, the walls 4 of the boiler settin and a cover thereover in alinement with t e grate 6 as shown in Fig. 4.

In the branch conduits 20 and 21 pipes 23 are located, at their front ends extending in4 front of the boiler setting and in communication with vertical pipes 24 which are connected in any suitable manner with the steam drum 5 to receive steam. At a number of points in .the length of the pipes 23 branches are made and turned vupwardly as indicated at 26 being received in spaces formed in the side walls 4 4and extending upwardly to points above the grate. Said spaces have openings 27 communicating r, with the fire box at points above the grate.

Afterv the lire on the grate (thasv been stare ed and is burning freely new fuel isA put on the re at one sideonly. For instance, it may be thrown on to the ire through the door 8 at the right. When this is done steam is passed into the pipe 23 on the same side of the re either by turning the proper valve orby any automatic arrangement operated throughv the pipe escapesthroughjthe vari- .ous branches 26. and' passes-through( 0peny ingsl 27 overv the freshlyy enteredV fuel Yat vthe vertical walls '4 lare ,placed tto' inclosefthe. same; 'A' steamdruln' is locatedabove and by opening of the door. AT he steam passing branches 19 and 21, the combined air and steam passing over the fresh fuel and carrying the gases and smoke which rise therefrom to the left side of the fire. Post 11 is of utility in this connection in blocking the escape of the gas and smoke before they pass over the fire at the left of the furnace yet at the same time it is not of sufficient size to impede the progress of the products of combustion to the rear. Such smoke and gases accordingly are entirely consumed and back of the post 11 no smoke appears. It will also be evident that by reason of the heat upon the conduit 13 the air passing therethrough is warmed and heated considerably above ordinary atmospheric temper- `ature before it reaches the lire.

The same operation is gone through with at the next firing of the boiler but on the opposite side of the fire, the steam being admitted through the pipe at the opposite side so that, at all times, as fresh fuel is placed on the fire, the usual smoke and gases arising are forced to pass over the freely burning fuel on the other side of the furnace to be completely consumed and the entire heat of the fuel utilized.

IVe claimzwl. In combination with a boiler, a setting therefor forming a fire place under the -k boiler and provided with an arch, said iire place being provided with an outlet, a grate in the fire place, a post located at the back of the re place and centrally of the same and dividing the outlet in the fire place into two passages, fire doors located on opposite sides of the middle of the front to enable the side portions of the fire place to be alternately supplied with fresh fuel, means for introducing heated air into the fire place at the sides thereof above the grate, and steam pipes located at the sides of the fire place and having outlets discharging into the ire place and arranged to draw heated airinto the same, the steam outlets on each side of the fire place being adapted to force the smoke and gases from one side of the re place to the opposite side thereof.

2. In combination with a boiler, a setting therefor, a fire place arranged under the boiler. and provided with an outlet, a grate .in thefire place an upright post.. located centrally `in the rear ofthe grate and divid- .ing-tlieioutlet of. the fire placeinto two passages, firing doors vlocated on opposite vsidesfoffthe middle of the front to enable the 4 sides of the fire place to be alternately suppliedv with fuel, an air inlet flue provided with branches extending to the sides of the fire place and along the same and provided with outlets communicating With the fir@ 12g Outlets' discharging int@ there place Plate @beve the grate and steam pires hav- Learner? the lire place being adapted to force the 4an outlet,`a grate in the fire place, an upright post located centrally in the rear of the grate and dividing the outlet of the fire place into two passages, firing doors located on opposite sides of the middle of the front to enable the sides of the fire place to be alternately supplied with fuel, an air inlet flue located in the rear of and extending forwardly to the fire place and provided with branches extending laterally to the sides of the setting, and forwardly along the side of the lire place and provided withl outlets communicating with the fire place above the grate and steam pipes discharging through the said outlets into the fire place and adapted to draw heated air from the flue into the fire place, the steam outlets on each side of the lire place being adapted to force the smoke and gases from one side of the fire place to the opposite side thereof.

4f. In combination with a boiler, a setting therefor forming a fire place under` the boiler, said fire place being provided with an outlet, a grate in the lire place, an upright post located centrally in the rear of the grate and dividing the outlet of the fire place into two passages, firing doors located on opposite sides of the middle of the front to enable the sides of the fire place to be alternately supplied with fuel, an air inlet flue located in the rear of the grate and having` branches extending to the sides of the setting and forwardly along the sidesof the lire place below the plane of said grate and provided with upwardly extending outlets communicating with the fire place above the grate and arranged at spaced points, and steam pipes located in said branches below the plane of the grate and having branch pipes extending upwardly in the said outlets and arranged to discharge into the fire place through the said outlets, and the steam outlets on each side of the fire place being adapted to force. the smoke and gases from one vside of the fire place to thehoppositeside thereof.

. 5. In Combination with a boiler, a setting therefor forming a fire place under the boiler, said tire place being provided with an outlet, a grate in the fireplace, an upright post locatedI centrally at the backof the fire place-and dividing the outlet thereof into two separate passages, said post being provided at its front portion with for- Warflly CQnversnaSde-fas, fire doors' 10- cated at the trentini therenlee Qn e159@- site Sides'e 'the middle-[et the freebie 'ent 'able ,the Sides et the re' place to be alter'- located in the rear of the grate and having' branches extendin to the sides of the setting and forwardy along the sides of the fire place below the plane of the said grate and provided with upwardly extending outlets communicating with the fire place above the grate and arranged at spaced points, steam pipes located in the said branches and 'below the plane of the grate and having branch pipes extending upwardly in the said outlets and arranged to discharge into the fire place and draw heated air from the flue into the said tire place, the said steam outlets on each side of the fire place being adapted to force the smoke and gases from 15 i LESTER NEVERS. FRANK WHITBECK. 

